Oil burner installation



.lilly 1, 1941.

w. lA. PURTELII OIL BURNER INSTALLATION Filed March 9, 1939 2 Sheets-Sheet 1 July l, 1941.

w. A. PURTELL OIL BURNER INSTALLATION Filed March 9, 1939 2 Sheets-Sheet 2 Patented July 11941 i l y f1.2.,2'47359.,l

UNITED s'iii'riezs.A 'PATENT oFF-ica I I om UN4''mnoN .Y I I I William A. Purtell, West Hartford, Conn., assigm. or toThe Spar-mal Engineering Corporation, a

corporation of Connecticut l v 'Application Maron s, 1939, serial No. 260.112'

' 's claims. (ci. itz-494i My invention relates to oil burners. -indicated at 3, carrying thereon an oil burner and It has .among its objects to provide an iml its controlling mechanism and supply connec-v proved oil burning unit. A further object of my tions, and this slide mechanism being adapted' invention is to provide such an improved unit of to be inserted in operative position in the casing.

an improved construction especially adapted to 5 2, as shown in Figure 2, or withdrawn, as shown use in connection with a boiler`and having the in Figure l, all in an improved manner and as latter forming apart thereof. Another object is hereinafter more fully described.

toprovide improved means including an improved Referring more particularly to the boiler l, l casing and an improved heating unit for enabling it will be noted that the same is a vertical boiler the oil burner and its associated mechanism to and mounted on the top and at the rear of the be readily inserted in and removed from operacasing 2. As showma suitable aperture I is protive position beneath such a boiler. Still another vided in the top of the casing 2 adapted to receive' object is to provide improved combustion chamthe lower end of the boiler unit and support ber forming means including an improved -slide the outer shell thereof, while the tube carrying for the oil burnerand having improved air cir-- structure 5 of the boiler is carried on suitable culating and insulating structure and also having inner supports 6 in the top of the casing 2'. Pason said slide a removable closure including imsage means 1 are also provided between the wall proved cooperating air circulating and insulating `-olf this aperturea'nd the supports 6' which commeans in said combustion chamber. Other ob- 'municate with a suitable air space 8 in the Iboiler jects include the provision of an improved arand open downward into the interior of the casrangement of the burner and control mechanism ing 2 and other air spaces therein as hereinafter on this slide and relative to such a combustion described. It will also be noted that the vertical chamber closure thereon, and improved supply tubes 9 of the boiler, only three of which are connections also connected to said slide, all illustrated, also open into the interior of this whereby the slide may be readily withdrawn as casing 2- It Will 8.150 be lindel'StOOd that these a unit from operative position inthe combustion tubes are adapted t0 be Cleaned fiOm the 170D and chamber when desired to permit ready servicing while the boiler I lremains in position on the casor substitution of another unit vas necessary. ing 2, a removable cover member l0 being pro- 'rhese and other objects and advantages of my vided for this purpose on the top of the boiler. improvement will, however, hereinafter more while the productslof .combustion from these fully appear. l tubes 9 pass out through a suitable flue II.

In the accompanying drawings, I have shown Referring next to the casing 2, it Will be 0bfor purposes of illustration 'one embodiment served that the same herein includes generally which my invention may assume in practice. hill'izfllltally dSPOSBd tOi) and bottom members Inrthese drawings- 35 I2 and I3, herein in the form of castings, and an Figure 1 is a perspective view of my improved outer Vertical sheet metal side member I4 upunit, the slide carrying the burner, mechanism standing between said members and herein also being shown in withdrawn position and the having an opening I5 at its front end to receive boiler being broken away to facilitate illustration; the slide 3, as hereinafter described. As shown,

Fig. 2 is a central vertical section through the 40 the top member I2, in addition to the aperture 4 unit, the upper portion of the boiler beingomitted Bild parts 6 heretofore described, 1S herein also to facilitate illustration, and certain parts on theprovided with a suitable series of air circulating slide mechanism being shown in elevation; openings I6 at the front thereof ;A while the bottom Fig. 3 is a view similar to Figure 2, but showing member I3 is also so spaced above thefloor and the slide withdrawn and the parts thereon in provided With Openings-l1 and I3 under the side elevation; openings I6 and 1, respectively, in the upper f Fig. 4 is a sectional view on line 4-4 of Figure member l2, as'to provide for free circulation of 3, and y air. Here it will also be noted that transversely Fig. 5 is a sectional view on line 5.-5 of Figure disposed partition membersls divide the interior l 50 of the casing 2 into front and rear portions 20 In this illustrative construction, I have shown and 2|. In the real Portion 2| a combustion my improvedunit as including a vertical boiler chamber 22 is provided. As Shown, en inner l and having a horizontally disposed burner sheet metal lining member 23 provides the side casing 2' beneath the same, this casing 2 having and back walls of this chamber and the latter therein reciprocable slide mechanism, generally t5 has afront opening 2l therein. Attention here is i guided by the portions 29.

also directed to the fact that substantial air spacing, overlying the openings I8 and communieating with the openings 1, is thus provided between the casing member I4 and the member 23 forming the walls of the combustion chamber. It will also be noted that the front end of the member 23 is spaced inwardly and from the partition members I9, while one of the airinlets I8 is disposed beneath the space between the opening 24 and a like opening 24a between the partition members I9. As shown, upstanding flanges 25 and 26 space'd from one another longitudinally of the casing, of which the flange 26 is higher than the flange 25, are also provided on the bottom member I3 in front and rear of this opening I8, while corresponding depending flanges 21 and 28 are provided on the top member I2 to cooperate with the slide While maintaining air circulation; as hereinafter described. Also, it 'will be observed that stationary, ribbed, slide supporting and guiding portions 29 are provided on the member I3 in the bottom of the chamber 20 leading from the opening I centrally to the openings 24a., 24.

Cooperating with the boiler I and casing 2 is the improved lslide mechanism, generally indicated at 3, and on the front end of which the burner is carried, the slide being freely movable between the positions shown in Figures l and 2. Herein this mechanism includes a slide member 38 in the form of a casting, and slidable along and over the portions 29 from the withdrawn position shown in Figure 1 to the operative position shown in Figure 2, This member 30 herein is also provided with depending vertical flanges 3| in its inner end slidable along the ribs of the portions 29 from the position shown in Figure 1, while the flanges are receivable through suitable slots 29a provided in the flanges 25 and 26 on the member I3 and shown in Figure 4, to the position shown in Figure 2. Herein, depending transverse longitudinally spaced anges 32, 33 are also provided intermediate the ends of the slide 30, of which the flange 32 is the longer and adapted to engage the outer face of flange 25. Further, the flange 33 passes over the top of this flange 25 on the member i3 'and engages flange 26 thereon. In front of these flanges, longitudinally extending flanges 34 are also provided, these flanges 34 corresponding to the flanges 3l and likewise being supported and Depending feet 35 are also preferably provided on the outer ends of these flanges 34 to'provide supports for the slide 38 in the withdrawn position thereof illustrated in Figures l and 3 when the inner end thereof is supported on the outer end of the member i3. Preferably vertical slots 35 are also provided in the outer end of the member I3 and in alignment with the slots 28a. Also, the slots 36 are of such depth as to receive the feet 35 and enable them to be disposed flush with the front oi the member I3 when the slide is pushed in. While these feet 35 are herein formed integral with the cast slide 38, the same may be separately formed and attached thereto, and it will also be evident that, if desired, suitable rollers may be provided thereon to facilitate the movement of these feet over the floor as the slide is pulled out.

Referring more particularly to the burner mechanism carried on the slide 30, it will be observed that the burner mechanism proper, generally indicated at 31, is carried on the inner end of the slide above the front flanges 3|, while the fuel supplying mechanism and the controllingr`l` mechanism for the burner, generally indicated at 38, and the air supplying mechanism including the motor 39 and blower 40, are carried on the outer end portion of the slide. Herein, the burner 31 is also mounted on the front end of a longitudinally extending conduit 4I leading inward from the blower 40 and passing through a suitable aperture 42 above the ilanges 32 and 33. Further, these flanges herein form depending parts of longitudinally spaced lower plates 43, 44, forming closures for the lower portion of the openings 24, 24a. Also, herein, upper longitudinally spaced plates 45, 46, forming upward extensions of these plates 43 and 44 closing the remainder of these openings I24, 24a, are suitably connected to the plates 43, 44 as by bolts 41. Of these upper plates 45 and 46, it will also be observed that the plate 45 passes beyond the `lower end of the flange 21 on the upper casing member I2 and engages the flange 28 thereon, while the plate 46 is higher'and engages the outer surface of the flange 21, all in such manner as to close the openings 24, 24a in the combustion chamber 22 when the burner 31 is in operative position therein. Further, it will be observed that a closure plate 48, suitably fixed to the outer end of the slide, closes the 0pening.|5 in the casing 2, while a handle 49 is provided on the outside of this closure plate and near the bottom thereof and suitably connected to the end of the slide, in such manner as to enable the whole slide to be readily withdrawn. Moreover, it will be observed that a fuel pipe 58 is suitably separably connected as at 5I to the oil supply of the control mechanism, generally indicated at 38, by a suitable stationary connection, in such manner that fuel may be supplied as necessary from this control mechanism tothe burner 31 through usual stationary connections. A connector plug 52 connected to the motor and other electrical connections of the device, is provided on the outer surface of the closure plate 48 so that a line conductor may be suitably connected thereto by a suitable plug 53.

In the use of my improved construction, it will be observed that the'slide 30 and all the fuel and air supplying mechanism for the burner thereon forms a unit capable of being inserted bodily longitudinally in the casing I from the position shown in Figures 1, 3 and 4 to the posi-v tion lshovvn in Figure 2. Further, when the fuel and electrical connections are made to the closure plate 48, it will be evident that the burner mechanism is capable of operating in a normal manner in the combustion chamber 22.

closed by the plates 43, 44, 45 and 46, while a suitable air supply to the burner 31 is maintained by the blower 48 and air is admitted to the latter through the openings I6, I1. Attention further is directed to the air circulation and insulation provided by the passages between the members I4 and 23 and between the plates 43, 45, and 44, 46, which communicate with the openings I8 in slide 30 and member I3 and with the openings 1 in the top member I2, Thus, it is made possible to cut down objectionable radiation of heat from the combustion chamber by this air circulation leading up within the shell of the boiler. At the same time, the plates 43, 44, 45, 46 serve effectually to prevent overheating of the supply and control connections for the burner mechanism, A

As a result of my improved construction, it

Note Vfurther that the latter has its openings 24, 24a

will further be any part thereo in such manner vas to enable these tubes to be cleaned from the top, upon removal of the cover i0, and permit any material in the tubes to fall l into the combustion chamber or a suitable receptacle therein, without fouling the burner 31. Further, if any need arises forrepair of any of the mechanism on the slide $0, it is only necessary to withdraw the same to obtain access to Also, should the repair be of such nature as to be incapable of being made by a service' man at the installation, the entire drawer may be replaced by another complete 'unit and the defective drawer shipped to the factory as necessary. These and other advantages of my improved construction wi1l,however, be apparent to those skilled in the art.

While' I have -in this application specifically described one' embodiment which my invention may assume in practice, it will be understood that the same is shown. for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

What I claim as new and desire to secureby Letters Patent is:

1. In combination, a generally horizontally disposed heater casing open at one end and having a partition between its ends defining a combustion chamber therein, and said casing providing a passage between said combustion chamber and said open end, oil burner mechanism in-l cluding a support insertable in said casing through said open -end and passage and also having a burner located in said combustion chamber when said support is so inserted and fuel supplying mechanism for said burner on said support in said passage between said burner and the open end of said casing, and a combustion chamber closure on said support between said burner and said supplying mechanism cooperating with said partition to isolate said combustion chamber from said passage.

2. In combination, a generally horizontally disposed heater casing open at one end and having a partition between its ends defining a combustion chamber therein, and said casing providing a passage between said combustion chamber and said open end, oil burner mechanism including a slide insertable in said open end and passage and having a burner located in said combustion chamber when said slide is so inserted and fuel supplying mechanism for said burner on said slide disposable in said passage means end of said casing, and heat insulating'means for said combustion chamber around the latter and including a combustion chamber closure on said K between said burner and the open' said burner on lsaid slide between ksaid burner vand the open endof said casing, and upstanding inner and outer closure means carried at spaced points on said slide and cooperating respectively with said partition and the open end of said casing to. form a closurefor said combustion chamber and for said casing when said slide is inserted therein.

4. In combination, a generally horizontally disposed heater casing open at the front having a top opening in the real'l end thereof adapted to communicate with a ilue, a partition between the ends df said casing defining a combustion chamber beneath said top opening and alsohaving a front opening, oil burner mechanism including a slide insertable in said casing through the open front thereof and having 'a burner thereon located in said combustion chamber when said slide is so inserted, and a combustion chamber closure carried by said slide between the ends thereof cooperating withI said partition when said slide is inserted in said casing to close the open .front of said combustion chamber.

5. In combination, a generally horizontally disposed' casing having an opening at one end thereof. a fiue, and a combustion chamber communicating with said flue comprising spaced inner and outer casing members, saidinner casingvmember being spaced from said outer member to form an outer insulating chamber surrounding the combustion chamber and having a side entrance leading into .the latter, an oil burner disposed in said combustion chamber, burner supporting slide means for enabling longitudinal insertion or withdrawal of said burner through said entrance, and a closure for said entrance movable with said burner and having spaced walls engaging the walls of saidl inner and outer casing members around said entrance to complete the doublewalled enclosure around said combustion tion chamber and having a boiler aperture in the top of said chamber, an angularly related boiler over said combustion "chamber having tubes opening into the latter, oil burner mechanism in casing through said slide between saidburner and said supplying Y mechanism cooperating with said partition to `isolate said combustion chamber from said passage.

3. ,In combination, a generally horizontally dis-` y nectible to a fuel supply said casing having a burner in said combustion chamber and fuel supplying mechanism for said burner in the opposite end of said casing, slidey mechanism carrying said burner 'mechanism and supplying mechanism and removable from saidA casing to remove said burner mechanism through said open end during cleaning of said boiler tubes,

and combustion chamber closure forming means carried on said slide mechanism between said burner and supplying mechanisms cooperating with said partition for closing said combustion A chamber when said slide mechanism is inserted in said casing.

'7. Ain oil burner unit adapted to be horizontally inserted in and withdrawnfrom a casing comprising a horizontal slide, an oil burner on one end thereof, fuel supplying mechanism for said burner on the opposite end of said slide, an. upstanding combustion chamber closure on said slide between said burner and said supplying mechanism, an upstanding casing closure on said slide on the opposite end of the latter from'said burner, and supply connections on said second closure connected to said mechanism and conline.

8. In combination, a,k heater casing"having a combustion chamber in one end thereof., a boiler over said combustion chamber having passage maintaining air circulation around said chammeans opening into said casing around said comber and between said'burner and supplying mechbustion chamber, oil burner mechanism in said anism and up through said passage means in said casing having a burner in said combustion chamboiler.

ber and supplying mechanism for said burner in 5 WILLIAM A. PURTELL. the opposite end of said casing, and means for 

